<style>

	/* Horizontal NavBar */

	nav a {
		text-decoration: none;
		color: #fff;
		font-size: 110%;
		font-family: 'Open Sans', sans-serif;   
	}

	li {
		text-decoration: none;
		display: inline-block;
		margin: 8% 4% -1% 4%;
		padding: 1%;
	}

	/* Adding NavBar Background */

	.main-nav {
		background: #000000;
		text-align: center;
		position: fixed;
		top: 0;
		left: 0;
		right: 0;
		opacity: 0.6;
		z-index: 9999;
		margin: -10%;
	}

	/* Setting Hover States */

	a:hover {
		color: #a9a9a9;
	}

	a:active {
		color: #a9a9a9;
	}

	/* Body Styles */

	body {
		margin: 0;
		font-family: 'Open Sans', sans-serif; 
		font-weight: 100;
	}

	body, html
	{
		height: 100%;
	}

	#table-container
	{
		display:    table;
		text-align: center;
		width:      100%;
		height:     100%;
	}

	#container
	{
		display:        table-cell;
		vertical-align: middle;
	}

	#main
	{
		display: inline-block;
	}

	#spreadsheet
	{
		margin: 20px;
	}

	.main-content {

		position: absolute;
		left: 50%;
		top: 50%;
		transform: translate(-50%, -50%);
		
		width: 70%;
		height: 60%;

		padding-top: 40px;  
		padding-bottom: 20px;  
		padding-left: 20px;  
		padding-right: 20px;  

		color: black;
		text-align: center;

	}

	/* Form elements for inputting / submitting QR Codes */

	form input {
		float:center;
		clear:both;
	}
	
	form input {
		margin:15px 0;
		padding:15px 10px;
		width:40%;
		text-align: center;
		outline:none;
		border:1px solid #bbb;
		border-radius:20px;
		display:inline-block;
		-webkit-box-sizing:border-box;
		   -moz-box-sizing:border-box;
				box-sizing:border-box;
		-webkit-transition:0.2s ease all;
		   -moz-transition:0.2s ease all;
			-ms-transition:0.2s ease all;
			 -o-transition:0.2s ease all;
				transition:0.2s ease all;
	}
	
	form input[type=text]:focus {
		border-color:cornflowerblue;
	}

</style>